作者:Won-Il Lee、Jong-Wha Jung、Jaebong Jang、Hwayoung Yun、Young-Ger Suh
DOI:10.1016/j.tetlet.2013.07.037
日期:2013.9
A concise and high-yielding protocol for the synthesis of 5,6-dihydrophenanthridines is disclosed. The key feature includes a sequential reduction-cyclization reaction of N-acylcarbamates via N,O-acetal TMS ethers as a stable N-acyliminium ion precursor. (C) 2013 Elsevier Ltd. All rights reserved.